How Far Above Gutter Radon Mitigation

Radon mitigation systems depressurize the subslab region and these systems will not work if there are significant air pathways that connect your subslab region either to the outdoor air or to the indoor air that s in your basement.

How far above gutter radon mitigation.

Astm e 2121 is a us standard for reducing air born radon in homes as far as practicable below the action level of 4 picocuries per liter pci l 148 bq m 3. When radon gas is discharged via a radon mitigation system above the roof the radon concentration falls off dramatically with distance from the point of discharge. For a radon mitigation system to work with a perimeter drain system be mindful of the following details. Depending on the area that needs the remediation the under slab portion of this pipe is usually perforated and with a t so it can extend at least 5 feet on either side.

In fact the radon gas concentration approaches background levels at 3 4 feet from the discharge point. A furnace will only be operated during the cold season whereas a radon mitigation system will operate in the summer when the windows may be open. Some states recommend achieving 2 0 pci l or less. It should be safe to terminate the radon pipe 15 or 20 feet above the ground which exceeds the 10 foot minimum height standard.

Pipes are to located 12 above the plane of a roof not necessarily the.